From patchwork Tue Jan 28 12:07:39 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Bruel X-Patchwork-Id: 13952514 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A3A18C0218D for ; Tue, 28 Jan 2025 12:21:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=NrWZEBaWAkproY8CI+qS1Q6z3QO/fCAcsTOlY185XKo=; b=if3Rhu5iYHUhyvcjj+OazoIr7o SuRmRD/eRO5G3SoPO/wbb3nniueHz/YrWx4f1KuVyTGAs0LNdbM/O+D5npuuyJOHL5ZUtwHbP2UCO NZcrHh0TDNxVWJSZr9ivx531REONMwdDcvGKyJeIhOgCL9zu7pCyKTDF4dVUVhs6c3NzSwFPaJF4a 3p7a4ie0RDIznlKjZgy8nNL0uLs+kA+YcHhQeT0rJLK3tTQqlohKABTRlFupdK1X62s5FMC4vdx7Y sL7CF1Nx139FsRvXNB9Nm/kCN3slUjvq+h9WalteXeT8Tni+FvM0Gh3ZaA6F7UhEFd3XiAHgMbori a1jK7ynA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tckaH-00000004rzc-46bn; Tue, 28 Jan 2025 12:20:49 +0000 Received: from mx07-00178001.pphosted.com ([185.132.182.106]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tckSZ-00000004qeX-28Jp for linux-arm-kernel@lists.infradead.org; Tue, 28 Jan 2025 12:12:53 +0000 Received: from pps.filterd (m0288072.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 50S9U0Mj022168; Tue, 28 Jan 2025 13:12:40 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=selector1; bh= NrWZEBaWAkproY8CI+qS1Q6z3QO/fCAcsTOlY185XKo=; b=BPA9RETdlfOYVzLY AARnWzUHr1ree2U8oKu3TFOzp8XCD4/+n0AkabQuNr+7guv30K413nng0e5eBgs+ nJf964G/xmLwPkjVhzNc7oAFI9pa4htk8DwgJGmb8YhNwGUKl7Y0/UIaMF7bg7sM 4vt1ee8OV1lT20fmi50uJW55/jp8B1agBZsZ9rKVhj2h94ubvDmzw0LbJkZvWkEx 6TiIuSrgueP1wF7u7MdKVmvwxGVznmUD3hjEMKQCCQ6gs+cVUKBT2dyesj7zdorY hyspkH8TNqgt0neDeNyGLxFUbhwWAZR6MSlqn/7rYXzJdGvI7zZyQIa7WuFDZwT4 e9vSpg== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 44eeqxk54v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 28 Jan 2025 13:12:39 +0100 (CET) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id E265E40050; Tue, 28 Jan 2025 13:11:10 +0100 (CET) Received: from Webmail-eu.st.com (shfdag1node3.st.com [10.75.129.71]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 9ABB72DBA23; Tue, 28 Jan 2025 13:08:16 +0100 (CET) Received: from localhost (10.129.178.212) by SHFDAG1NODE3.st.com (10.75.129.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Tue, 28 Jan 2025 13:08:16 +0100 From: Christian Bruel To: , , , , , , , , , , , , , , CC: , , , , , Subject: [PATCH v4 04/10] dt-bindings: PCI: Add STM32MP25 PCIe Endpoint bindings Date: Tue, 28 Jan 2025 13:07:39 +0100 Message-ID: <20250128120745.334377-5-christian.bruel@foss.st.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250128120745.334377-1-christian.bruel@foss.st.com> References: <20250128120745.334377-1-christian.bruel@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.129.178.212] X-ClientProxiedBy: EQNCAS1NODE4.st.com (10.75.129.82) To SHFDAG1NODE3.st.com (10.75.129.71) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-01-28_04,2025-01-27_01,2024-11-22_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250128_041251_855088_99939F76 X-CRM114-Status: GOOD ( 12.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org STM32MP25 PCIe Controller is based on the DesignWare core configured as end point mode from the SYSCFG register. Signed-off-by: Christian Bruel Reviewed-by: Rob Herring (Arm) Acked-by: Manivannan Sadhasivam --- .../bindings/pci/st,stm32-pcie-ep.yaml | 67 +++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/st,stm32-pcie-ep.yaml diff --git a/Documentation/devicetree/bindings/pci/st,stm32-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/st,stm32-pcie-ep.yaml new file mode 100644 index 000000000000..fc1bbe19e616 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/st,stm32-pcie-ep.yaml @@ -0,0 +1,67 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/st,stm32-pcie-ep.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: STMicroelectronics STM32MP25 PCIe Endpoint + +maintainers: + - Christian Bruel + +description: + PCIe endpoint controller based on the Synopsys DesignWare PCIe core. + +allOf: + - $ref: /schemas/pci/snps,dw-pcie-ep.yaml# + - $ref: /schemas/pci/st,stm32-pcie-common.yaml# + +properties: + compatible: + const: st,stm32mp25-pcie-ep + + reg: + items: + - description: Data Bus Interface (DBI) registers. + - description: PCIe configuration registers. + + reg-names: + items: + - const: dbi + - const: addr_space + + reset-gpios: + description: GPIO controlled connection to PERST# signal + maxItems: 1 + + phys: + maxItems: 1 + +required: + - phys + - reset-gpios + +unevaluatedProperties: false + +examples: + - | + #include + #include + #include + #include + + pcie-ep@48400000 { + compatible = "st,stm32mp25-pcie-ep"; + reg = <0x48400000 0x400000>, + <0x10000000 0x8000000>; + reg-names = "dbi", "addr_space"; + clocks = <&rcc CK_BUS_PCIE>; + phys = <&combophy PHY_TYPE_PCIE>; + resets = <&rcc PCIE_R>; + pinctrl-names = "default", "init"; + pinctrl-0 = <&pcie_pins_a>; + pinctrl-1 = <&pcie_init_pins_a>; + reset-gpios = <&gpioj 8 GPIO_ACTIVE_LOW>; + access-controllers = <&rifsc 68>; + power-domains = <&CLUSTER_PD>; + };